~jaro/balkon

ref: 69e92e75ea01ea2631277c40c5b6fdc36e538337 balkon/test/Data d---------
Clean up ParagraphConstruction.
Use infix operators for constructing test data.
Implement "plain" interface.
Create "plain" interface.
Add module for working with rectangle coordinates.
Add explicit scale to test font.
Separate tests by module.